Blank-feed mechanism for heel-compressing machines.



M. T DENNE. BLANK FEED MECHANISM FOR HEEL COMPRESSING MACHINES.

APPLlCATlON FILED OCT. 18. 1913.

1 ,238, 391 Patented Aug. 28, 1917.

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/ YMMzW UNITED STATES rarnntr OFFICE;

MARK THOMAS DENNE, OF RUSHIDEN, ENGLAND.

BLANK-FEED MECHANISM FOR, HEEL-COMPRESSING MACHINES.

Application filed October 18, 1913.

To all whom 2'25 may concern:

Be it known that I, MARK THOMAS DENNE, a subject of the King of GreatBritain and Ireland, residing at Rushden, Northamptonshire, England,have inventednew and useful Improved Blank-Feed Mechanism forHeel-Compressing Machines, of which the following is a specification.

This invention has reference to an improved blank feed-mechanism forheel compressing machines, and is intended for use on heel compressingmachines having a swinging or rocking table or die carrier, for example,such as is described in the specification of my United StatesLet-tersPatent No. 1,176,743, dated-March 28, 1916, although I do notlimit the application of my invention thereto.

In the machine described by way of example in said patent, the table ordie carrier, in addition to swinging or rocking movements, has verticalmovements imparted to it. When my present invention is to be applied tosuch a machine I prefer to support the operating parts of the blank feedmechanism on a vertically movable part of such machinesay by a bracketso that they will move vertically up and down therewith but will notrock or swing with, the table or die carrier.

A feature of my improved feed-mecha nism is that a pair of feed-arms ismade tocarry or move a heel blank into position on the table or the heelseat die thereon when the table is tilted outward the said armsretaining the blank in position while the table begins to moveto theheel compressing position and thereafter will permit the table to forcethem apart when nearing the end of its swinging movement. Anotherfeature is that the feed arms are made to move in such a pathangular tothe path of movement of the swinging tablethat at one end of their pathof movement the at-' tendant may insert a blank by merely pushing itdirectly between their free ends and against a guide rail which isparallel or substantially parallel to the said path of movement. Otherfeatures of my invention are comprised in the particular path ofmovement which I preferably impart to the arms and also in the improvedmechanism whereby the movements of the several parts are attained, allto be hereinafter described.

Specification of Letters Patent.

Patented Aug. 28, 1917.

Serial No. 796,063.

In the accompanying drawing I have il1ustrated-by way of eXamplea formof construction of my invention as it may be applied to the heelcompressing machine which forms the subject-matter of my said LettersPatent No. 1,176,743, and so far as I have in this specificationillustrated parts of the said heel compressing machine I have adoptedsimilar numerals of reference.

In the accompanying drawing, Figure 1 is a plan view of a constructionalform of my invention and Fig. 2 shows that form applied to my particularheel compressing machine referred to.

At a position closely adjacent to the table 18 and preferably supportedby one of the bearings 4; carrying the shaft 5 of said machine I providean inclined platform 50 the angle of inclination of which is aboutcoincident with the angle of inclination of the said table 18 when thelatter is at its most outward or tilted position and which platform-forexample by being carried on an arm or the like 51 having a spindle 52slidable in a bearing 53 and adapted to be clamped by a set screw 54maybe set up or down accordingly as a very convex-or comparatively fiatheel seat die is carried on the table. Said platform is provided with arail or guide 50 to be referred to.

At one side of the platform 50 and at right angles theretoand at aposition about opposite or in front of the table 18 of my said machine-Iprovide a spindle 55 the upper end of which carries a boss 61 adjustablysecured to said spindle. The boss carries at diametrically oppositesides a pair of brackets 58,59 the former to support a set screw 58 andthe latter a spring device 59 between which a bar 60 having rack teethon its opposite longitudinal sides is slidably supported. The springdevice 59 serves to press the bar 60 toward or against the set screw 58the latteracting as an adjustable stopand the force of the spring devicemay be adjusted or regulated by any well known means as a set screw 59*.Also carried on the boss 61 are apair of spindles 56, 57 one on eachside of and at equal distances from the rack bar 60 on which spindlesarms 62, 68 are respectively rotatably mounted. The boss of each saidarms is formed or provided with a segmental rack to engage the relativerack teeth of the bar 60 and by the action of the spring device 59pressing the bar 60 toward the stop 58 it will be understood the frontends of the arms 62, 63 will be brought together to a greater or lessextent dependent upon the position or adjustment for the time being ofthe set screw or stop 58 and further by the particular means describedboth arms must move to the same extent either toward or from each other.

The free end of each of the arms is provided with a roller or equivalentthe shape of which will preferably correspond to the shape of the heelblanks to be fed;

The shaft 55 is carried in a suitable hearing and at its lower end isprovided with a spur wheel 55 gearing with another such wheel 55 whichlatter is made to oscillate at the *proper times from a suitable movingpart of the machine the arrangement being such that when the table 18 isin its heelcompressing position the shaft 55 will rotate and the arms62, 63 will be thereby swung over the platform (to a position at aboutright angles to that shown in Fig. 1) and at this time the operator orattendant feeds a heel by pressing the latter between the rollers 6 land up against the rail 50 the rollers'closing in on the heel.Thereafter the shaft is made to rotate to cause the arms 62, 63 to sweepor move the heel on to the table 18 (or the die carried thereby) asshown in plan view, it being understood that the table has meanwhilebeen returned to its lowermost position.

After the arms have positioned the heel over or on the table 18 thelatter is made to swing (in the manner described in my above-mentionedpatent) and in doing so will carry the heel with it. During thisswinging movement of the table, the portion 19 thereof will engage therollers on the arms 62, 63, thus separating them to permit the table tohave the above-described movement, the spring 59 yielding to permit suchmovement of the arms. IVhen the table 18 is clear of the arms 62, 63,said arms will be automatically swung into their heel-receiving positionby the expanding action of the spring 59 When the table again swingsinto the position shown in Fig. 2 it will, of course,

carry the lastly compressed heel and the arm 62 or its roller will knocksuch heel off into a basket or receptacle provided therefor whileplacing another heel thereon.

What I claim as my invention and desire to secure by Letters Patentis 1. In aheel compressing machine, the combination of a swinging table,a heel blank feeding mechanism comprising springpressed blank grippingmeans movable in a plane angular to the plane in which the table rocksor swings, and means for moving the said gripping means into position toreceive a heel blank while the table is in its heel compressing positionand into position to transfer the heel blank on to the table when thesaid table is swung out to its heel blank receiving position.

2. In a heel compressing machine, the com-' bination of a swinging tableand aheel blank feeding mechanism adapted to swing in a plane angular tothat in which the table swings and comprising a rotatable carrier, apair of heel gripping arms pivotally mounted at diametrically oppositepoints on the said carrier, a segmental rack formed on the boss of eacharm concentric with its pivot, a rack bar mounted on the carrier toslide tangentially to and between the pivots of the said arms and formedwith teeth at its opposite sides to gear with the aforesaid segmentalracks, a spring acting upon one end of the said rack bar and tending tocause it to rotate the said arms to bring their free ends toward eachother, and an adjustable stop acting upon the other end of the said rackbar to limit the action of the said spring.

3. In a heel compressing machine the combination of a swinging table, aheel blank feeding mechanism comprising pivoted spring-pressed armsgeared together and adapted to swing in a plane angular to that in whichthe table rocks or swings, means for moving the said arms into positionto receive a heel blank while the table is in its heel compressingposition and into position to transfer the heel blank on to the tablewhen the said table has swung out to its heel blank receiving position,and a sta: tionary guide rail arranged concentric with the path ofmovement of the said arms.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MARK THOMAS DENNE.

WVitnesses CHAS. BAUER, TRACY LAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner oi Patents, Washington. D. C.

